import axios from 'axios'
import { Notification, MessageBox, Message } from 'element-ui'
import router from '../router/index'

import store from '@/store'
import { getToken } from '@/utils/auth'
import errorCode from '@/utils/errorCode'

let showMsg = true; //token过期只弹出一次

axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8'
// 创建axios实例
const service = axios.create({
  // axios中请求配置有baseURL选项，表示请求URL公共部分
  baseURL: process.env.VUE_APP_BASE_API,
  // baseURL: 'http://47.106.222.181:8888',
  // 超时
  timeout: 30000
})
// request拦截器
service.interceptors.request.use(config => {
  
  config.headers['Content-Type'] = 'application/json;charset=utf-8'
  config.headers['Accept'] = 'application/json, text/plain, */*'

  // Content-Type,application/json;charset=utf-8,
  // Accept,application/json, text/plain, */*,
  // 是否需要设置 token
  const isToken = (config.headers || {}).isToken === false
  if (getToken() && !isToken) {
    config.headers['Authorization'] = 'Bearer ' + getToken() // 让每个请求携带自定义token 请根据实际情况自行修改
  }

  // get请求映射params参数
  if (config.method === 'get' && config.params) {
    let url = config.url + '?';
    for (const propName of Object.keys(config.params)) {
      const value = config.params[propName];
      var part = encodeURIComponent(propName) + "=";
      if (value !== null && typeof (value) !== "undefined") {
        if (typeof value === 'object') {
          for (const key of Object.keys(value)) {
            if (value[key] !== null && typeof (value[key]) !== 'undefined') {
              let params = propName + '[' + key + ']';
              let subPart = encodeURIComponent(params) + '=';
              url += subPart + encodeURIComponent(value[key]) + '&';
            }
          }
        } else {
          url += part + encodeURIComponent(value) + "&";
        }
      }
    }
    url = url.slice(0, -1);
    config.params = {};
    config.url = url;
  }
  return config
}, error => {
  Promise.reject(error)
})

// 响应拦截器
service.interceptors.response.use(res => {
  // 未设置状态码则默认成功状态
  const code = res.data.code || 200;
  // 获取错误信息
  const msg = errorCode[code] || res.data.msg || errorCode['default']
  if (code === 401) {
    
    if(showMsg) {
      Message({type:'warning',message: '当前未登录，请登录！'})
      showMsg = false
      // 5秒后恢复可弹出，避免一次弹出太多提示
      setTimeout(() => {
        showMsg = true;
      }, 5000);
    }
    router.push("/Bm-personalCenter/login")
    return Promise.reject('无效的会话，或者会话已过期，请重新登录。')
  
    // MessageBox.confirm('登录状态已过期，您可以继续留在该页面，或者重新登录', '系统提示', {
    //     confirmButtonText: '重新登录',
    //     cancelButtonText: '取消',
    //     type: 'warning'
    //   }
    // ).then(() => {
    //   store.dispatch('LogOut').then(() => {
    //     location.href = '/Bm-personalCenter/login';
    //   })
    // }).catch(() => { });

  } else if (code === 500) {
    // console.log(msg,"------------------------");
    //判断是否包含中文，包含中文就显示原报错，不包含就显示未知错误
    var reg = new RegExp("[\\u4E00-\\u9FFF]+","g");
    if(reg.test(msg)){
      Message({
        message: msg,
        type: 'error'
      })
    }else{
      Message({
        message: '未知错误，请联系商务！',
        type: 'error'
      })
    }
    return Promise.reject(new Error(msg))

  } else if (code !== 200) {
    Notification.error({
      title: msg
    })
    return Promise.reject('error')
  } else {
    return res.data
  }
},
  error => {
    let { message } = error;
    if (message == "Network Error") {
      message = "网络异常";
    }
    else if (message.includes("timeout")) {
      message = "系统接口请求超时";
    }
    else if (message.includes("Request failed with status code")) {
      message = "系统接口" + message.substr(message.length - 3) + "异常";
    }
    Message({
      message: message,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

export default service
